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Commit dbaaa147 authored by Vasanthakumar Thiagarajan's avatar Vasanthakumar Thiagarajan Committed by John W. Linville
Browse files

ath9k: Filter out beacons from other BSS in STA mode 



Passing beacons received from other BSS to s/w in non-scanning
state is unnecessary in STA mode. This patch filters them out in
h/w.

Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 96891cee

drivers/net/wireless/ath9k/mac.h

+2 −1
Original line number Diff line number Diff line
@@ -566,8 +566,9 @@ enum ath9k_rx_filter { 
	ATH9K_RX_FILTER_BEACON = 0x00000010,

	ATH9K_RX_FILTER_PROM = 0x00000020,

	ATH9K_RX_FILTER_PROBEREQ = 0x00000080,

	ATH9K_RX_FILTER_PSPOLL = 0x00004000,

	ATH9K_RX_FILTER_PHYERR = 0x00000100,

	ATH9K_RX_FILTER_MYBEACON = 0x00000200,

	ATH9K_RX_FILTER_PSPOLL = 0x00004000,

	ATH9K_RX_FILTER_PHYRADAR = 0x00002000,

};

drivers/net/wireless/ath9k/recv.c

+6 −5
Original line number Diff line number Diff line
@@ -375,14 +375,15 @@ u32 ath_calcrxfilter(struct ath_softc *sc) 
	if (sc->rx.rxfilter & FIF_CONTROL)

		rfilt |= ATH9K_RX_FILTER_CONTROL;



	if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION ||

	    sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)

	if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) &&

	    !(sc->rx.rxfilter & FIF_BCN_PRBRESP_PROMISC))

		rfilt |= ATH9K_RX_FILTER_MYBEACON;

	else

		rfilt |= ATH9K_RX_FILTER_BEACON;



	/* If in HOSTAP mode, want to enable reception of PSPOLL frames

	   & beacon frames */

	/* If in HOSTAP mode, want to enable reception of PSPOLL frames */

	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP)

		rfilt |= (ATH9K_RX_FILTER_BEACON | ATH9K_RX_FILTER_PSPOLL);

		rfilt |= ATH9K_RX_FILTER_PSPOLL;



	return rfilt;